Reading ALDL logs - TBI engine won't stay running knockcnt? Log attached

[spyderkeeper]

Hi, I have a Howell fuel injection kit on an old motor that won't stay running. Mechanic says it's because the oil pressure is dropping on the motor and causing more fuel to come in causing it to stall out and run rough. This seems like this would cause a rich fuel condition, which I don't see in the log. Would anyone care to review my log for my and help me out? I'll throw you 10 bones via venmo if you can help me solve this or figure out it's just a worn out engine and there's nothing I can do.

Looking at the RAW o2, it looks like that signal is cutting out like it's losing power, but I don't see anything in the voltage that would indicate this.

https://drive.google.com/open?id=1lA0S22SZUZGjI8i5a3wkIth1C5k7Vf3w

https://drive.google.com/open?id=1vD7RlbyYkCGiip8XjMvJEKXdOtKeaB-R

[babywag]

RAW data is not useful in a data log.
Check your power & ground connections, you're losing voltage.

14.4
14.4
14.3
14.4
14.4
1
12.9
12.9
11.9
10
9.9
12
9.2
0
0
12
6.8
0
0.1
0.1
0
12.1
12.2
0
9.7
11.7
12.8
13.3
13.4
13.9
13.3
13.5
14.2
14.3
13
0
12.7
9.8
9.8
0
9.3
9.7
11.8
13.2
13.6
14
14.2
14.3
14.3
14.3
14.3

[rang-a-stang]

Mechanic says it's because the oil pressure is dropping on the motor and causing more fuel to come in causing it to stall out and run rough.

WHAT?!?!? How would oill pressure have anything to do with fuel? (That's a rhetorical question, not meant to sound condescending) That makes almost no sense to me. I could see if you added an oil pressure cutoff switch and you were losing pressure that your truck would be shutting off because the computer would be telling it to but I am fairly certain Howell does not use an oil pressure cutoff switch.

I have a feeling babywag nailed it....

[spyderkeeper]

That was my response when he said that. I ran a straight wire from the ground to the TBI computer in the engine bay. What should I be looking at for the voltage drop, the sensor data?

https://drive.google.com/open?id=1tm5nafY88DuqXitheeLK3nWVJ4gTtrVJ

[babywag]

Open(import) the data log file w/ excel or openoffice calc

The battery voltage column clearly shows a voltage dropout and drop.
The ECM is losing voltage.
Since you already ran a new ground wire, focus on the ignition circuit.

Get rid of the RAW stuff(unselect) in the log.

[spyderkeeper]

Excellent thanks, I'll run a straight power wire to the positive lead of the solenoid to test first. PM me your Venmo and I"ll throw you some bones if you want.